XGY   Grimsby Mountain, ON Weather Observed At   43-11  N    79-34  W

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2026-02-28	3:45pm			Max		Min
Weather		----
Temperature		1.1 °C		7.1 °C	2:45am	0.9 °C	3:40pm
Relative Humidity		58 %		81 %	3:54am	45 %	12:53pm
Dew Point		-6.3 °C		2.8 °C	3:44am	-6.7 °C	2:00pm
Wind Velocity		333 ° at  3.9 G 9.6 kt		18.3 kt	3:16am
Pressure		30.042 in  ↑		30.042 in	3:45pm	29.628 in	4:04am
Rainfall Rate		0.0 mm/h		0.2 mm/h	4:00am
Snow On Ground		4 cm
Brightness / Darkness		104 W/m² /  0.00 m/as²		754 W/m²	12:49pm	19.73 m/as²	5:32am
Remarks

Rainfall	Today	0.4 mm	Storm Total	0.0 mm
Snowfall	Today	0.0 cm	Storm Total	0.0 cm

Evapotranspiration

Today

-1.60 mm

Lake Conditions

Water Temperature  --- °C

Waves  ---

HARBOUR ICE

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Meteor Index	3   Random
Aurora Index	9   Quiet   - 1 nT	Solar Flux   139  sfu  /   S 0    R 0    G 0   /  MUF   29.5 MHz

Sunrise	6:56am	Sunset	6:06pm
Moonrise	N/A	Moonset	N/A	Moon Phase	Waxing Gibbous

Grimsby Mountain Weather Maps
Local	Regional	Area	Synoptic
updated H+09 and every 10m	updated H+19 and H+49	updated H+19

Ontario 6-Hour Meteorological Summary

Canadian 6-Hour Meteorological Summaries

CLIMAT Data
Official	Yesterday					2004	2005	2006	2007	2008	2009	Normals & Records
		2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
		2020	2021	2022	2023	2024	2025	2026

Grimsby Mountain Charts

 

 

	Sky Quality (Darkness) Meter courtesy of

Wx Map	Sat Pix	IR Sat Pix	Radar	Lightning
	Water	Ice

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  This is a privately operated weather station that is part of the Meteorological Service of Canada's volunteer official observing network.
Permission to publish the weather statistics found on this website is not required.
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